C1111233133313231133133313331333133313231323331311331311211313111   >>    C111123313331323113313331333133313331323132333131133131121131311   <<    C1111233133313231133133313331333133313231323331311331311211313113   >>      C1111233133313231133133313331333133313231323331311331311211313112   >>